Abstract: A cylinder in a rotary printing press is inked with a highly viscous printing ink. An open ink duct is provided with a doctor blade that is supported negatively on the cylinder. A reserve of printing ink is added to the ink duct and is formed into an ink roll. A regular and intensive inking of the cylinder results with only very low ink circulation.

Abstract: An apparatus for printing a printing material on a substrate, such as a printed circuit board includes: a squeegee which extends in a first direction parallel to a plane screen and which slides on the screen to squeeze the printing material into through-holes of the screen; and an outlet-defining member which is opposed to the squeegee and which cooperates with the squeegee to define an elongate printing-material outlet. A printing-material container has a printing-material chamber which extends parallel to the printing-material outlet, has a length substantially equal to a length of the outlet and communicates with the outlet over a substantially entire length thereof. A printing-material thrust member is provided in the printing-material chamber such that the printing-material thrust member is substantially fluid-tightly movable relative to the printing-material container.

Abstract: A printer system for printing a given pattern on a base board includes a screen plate to be positioned above the base board. The screen plate has a perforated print pattern defined thereby. A printer proper is employed which includes an ink container chamber and an ink squeezing device. The ink squeezing device runs on the screen plate pressing the same against the base board while squeezing a given amount of viscous ink onto an upper surface of the screen plate. A cleaning device is employed for cleaning residual of ink left on a lower surface of the screen plate and an ink supplier is employed for feeding the ink container chamber of the printer proper with a fresh viscous ink when needed. An ink supplier is employed for feeding the printer device with a fresh viscous conductive ink when needed.

Abstract: A printer system for printing a given pattern on a base board is described which comprises a screen plate to be positioned above the base board. The screen plate has a perforated print pattern defined thereby. A printer proper is employed which includes an ink container chamber and an ink squeezing device. The ink squeezing device runs on the screen plate pressing the same against the base board while squeezing a given amount of viscous ink onto an upper surface of the screen plate. A cleaning device is employed for cleaning residual of ink left on an lower surface of the screen plate and an ink supplier is employed for feeding the ink container chamber of the printer proper with a fresh viscous ink when needed.

Abstract: A device for inking a screen roller of a rotary printing machine, with an ink chamber, arranged along side of the screen roller, which has an opening pointing toward the screen roller and which is closed on the front side by side walls and which has at least one ink inlet as well as a chamber body with a circular interior. In order to allow the screen roller to be inked in a manner correct for printing using simple technical devices, the ink inlet into the inking chamber is to allow the creation of an ink roll moved by the screen roller during operation in a rotating fashion.

Abstract: A printer system for printing a given pattern on a base board is described which includes a screen plate to be positioned above the base board. The screen plate has a perforated print pattern defined thereby. A printer proper is employed which includes an ink container chamber and an ink squeegeeing device. The ink squeegeeing device runs on the screen plate pressing the same against the baseboard while squeegeeing a given amount of viscous ink onto an upper surface of the screen plate. A cleaning device is employed for cleaning residual of ink left on an lower surface of the screen plate and an ink supplier is employed for feeding the ink container chamber of the printer proper with a fresh viscous ink when needed.

Abstract: In an ink supply apparatus, inks of a paste-like consistency are supplied from a cylinder to a chamber doctor blade disposed adjacent an inking roller. Two conduits are disposed at opposite ends of the chamber doctor blade and each conduit communicates with one of the two opposite ends of the cylinder. Ink is supplied to the cylinder through an aperture. Within the cylinder there is disposed a reciprocating piston which, at low speed, forces ink via the conduits to the chamber doctor blade.

Abstract: An ink agitating apparatus comprises a generally rectangular curved blade having concave recesses in its side and bottom edges. The blade is adapted to be reciprocated laterally by a pneumatic mechanism. The blade is flexible so that it can be twisted longitudinally by the hydrodynamic forces to which it is subjected when it moves through the ink to improve the agitation characteristic achieved by the blade.

Abstract: A printing fluid circulating device for use in a printing press having a printing fluid container (32) for containing printing fluid and having a rotatable pickup roller (34) partially submerged in the printing fluid in the container (32). The pickup roller (34) has a surface for picking up printing fluid. The printing fluid circulating device has at least one outer ribbon (10, 12) having a predetermined diameter and a predetermined surface area and at least one inner ribbon (14, 16) also having a predetermined diameter and a predetermined surface area. The diameter of the inner ribbon (14, 16) is less than the diameter of the outer ribbon (10, 12) and the surface area of the outer ribbon (10, 12) is less than the surface area of the inner ribbon (14, 16). Each of the outer and inner ribbons (10, 12, 14, 16) has a substantially helix configuration, the helix configuration of the inner ribbon (14, 16) being opposite the helix configuration of the outer ribbon (10, 12).

Abstract: A device for applying color to a block of a tampon printing machine includes a coloring and wiping device which is constructed as a bottomless hollow body and can be moved toward and pressed against the block with a pressing device. The pressing device is at least one magnet arranged in the hollow body. The magnets are arranged in pocket-shaped recesses at the end faces of the square hollow body. It is also possible to provide a stirring mechanism in the hollow body and to arrange the magnets in downwardly open chambers or an annular groove of the stirring mechanism.